Upper Edge Detour Monophonic Number of a Graph

For a connected graph G of order at least two, a path P is called a monophonic path if it is a chordless path. A longest x - y monophonic path is called an x - y detour monophonic path. A set S of vertices of G is an edge detour monophonic set of G if every edge of G lies on a detour monophonic path...

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Autores principales: Titus,P, Ganesamoorthy,K
Lenguaje:English
Publicado: Universidad Católica del Norte, Departamento de Matemáticas 2014
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-09172014000200004
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spelling oai:scielo:S0716-091720140002000042018-10-30Upper Edge Detour Monophonic Number of a GraphTitus,PGanesamoorthy,K edge detour monophonic set edge detour monophonic number minimal edge detour monophonic set upper edge detour mono-phonic set upper edge detour monophonic number. For a connected graph G of order at least two, a path P is called a monophonic path if it is a chordless path. A longest x - y monophonic path is called an x - y detour monophonic path. A set S of vertices of G is an edge detour monophonic set of G if every edge of G lies on a detour monophonic path joining some pair of vertices in S.The edge detour monophonic number of G is the minimum cardinality of its edge detour monophonic sets and is denoted by edm(G).An edge detour monophonic set S ofG is called a minimal edge detour mono-phonic set ifno proper subset ofS is an edge detour monophonic set of G. The upper edge detour monophonic number of G, denoted by edm+(G),is defined as the maximum cardinality of a minimal edge detour monophonic set ofG. We determine bounds for it and characterize graphs which realize these bounds. For any three positive integers b, c and n with 2 ≤ b ≤ n ≤ c, there is a connected graph G with edm(G) = b, edm+(G) = c and a minimal edge detour monophonic set of cardinality n.info:eu-repo/semantics/openAccessUniversidad Católica del Norte, Departamento de MatemáticasProyecciones (Antofagasta) v.33 n.2 20142014-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-09172014000200004en10.4067/S0716-09172014000200004
institution Scielo Chile
collection Scielo Chile
language English
topic edge detour monophonic set
edge detour monophonic number
minimal edge detour monophonic set
upper edge detour mono-phonic set
upper edge detour monophonic number.
spellingShingle edge detour monophonic set
edge detour monophonic number
minimal edge detour monophonic set
upper edge detour mono-phonic set
upper edge detour monophonic number.
Titus,P
Ganesamoorthy,K
Upper Edge Detour Monophonic Number of a Graph
description For a connected graph G of order at least two, a path P is called a monophonic path if it is a chordless path. A longest x - y monophonic path is called an x - y detour monophonic path. A set S of vertices of G is an edge detour monophonic set of G if every edge of G lies on a detour monophonic path joining some pair of vertices in S.The edge detour monophonic number of G is the minimum cardinality of its edge detour monophonic sets and is denoted by edm(G).An edge detour monophonic set S ofG is called a minimal edge detour mono-phonic set ifno proper subset ofS is an edge detour monophonic set of G. The upper edge detour monophonic number of G, denoted by edm+(G),is defined as the maximum cardinality of a minimal edge detour monophonic set ofG. We determine bounds for it and characterize graphs which realize these bounds. For any three positive integers b, c and n with 2 ≤ b ≤ n ≤ c, there is a connected graph G with edm(G) = b, edm+(G) = c and a minimal edge detour monophonic set of cardinality n.
author Titus,P
Ganesamoorthy,K
author_facet Titus,P
Ganesamoorthy,K
author_sort Titus,P
title Upper Edge Detour Monophonic Number of a Graph
title_short Upper Edge Detour Monophonic Number of a Graph
title_full Upper Edge Detour Monophonic Number of a Graph
title_fullStr Upper Edge Detour Monophonic Number of a Graph
title_full_unstemmed Upper Edge Detour Monophonic Number of a Graph
title_sort upper edge detour monophonic number of a graph
publisher Universidad Católica del Norte, Departamento de Matemáticas
publishDate 2014
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-09172014000200004
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